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upgrading x-can V1? anyone?
upgrading x-can V1? anyone?
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Old 2nd January 2018, 12:33 AM   #11
albertshi is offline albertshi  United States
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The back labeled X-CAN V2, but inside is actual V1!
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Old 2nd January 2018, 12:43 AM   #12
albertshi is offline albertshi  United States
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Anyway, I have upgraded it, see below some pictures for my modification.

One the up board: Added LM317/337 for main output rail regulation to stabilize the power rail ~ +/-25V, LM340.LM320 to make +/-15V instead of original 7815/7915. Replaced double voltage caps to 50V from 35V. Output caps to Fine Gold type, +/-15V output caps to UKZ type. Added 0.1uF CBB caps in parallel with all big Al caps.
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IMAG1770.jpg - Google Drive
IMAG1771.jpg - Google Drive
IMAG1772.jpg - Google Drive
IMAG1773.jpg - Google Drive

Last edited by albertshi; 2nd January 2018 at 12:56 AM.
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Old 2nd January 2018, 12:48 AM   #13
albertshi is offline albertshi  United States
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I will post more pictures tomorrow.
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Old 3rd January 2018, 01:36 AM   #14
albertshi is offline albertshi  United States
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Old 3rd January 2018, 01:37 AM   #15
albertshi is offline albertshi  United States
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Old 3rd January 2018, 01:38 AM   #16
albertshi is offline albertshi  United States
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Old 3rd January 2018, 01:41 AM   #17
albertshi is offline albertshi  United States
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Join Date: Jun 2006
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On the lower board, shorted first 2 coupling caps, replaced the third with good quality film caps.

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Last edited by albertshi; 3rd January 2018 at 01:47 AM.
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Old 3rd January 2018, 01:43 AM   #18
albertshi is offline albertshi  United States
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Old 3rd January 2018, 01:45 AM   #19
albertshi is offline albertshi  United States
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Replaced Opamp with 8-DIP socket and inserted OP275.
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Old 3rd January 2018, 01:46 AM   #20
albertshi is offline albertshi  United States
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Join Date: Jun 2006
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Replaced all Decoupling caps with UKZ 100uF/50V caps.
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